Yehoshua Neuwirth (Hebrew: ????? ????? ???????) (15 February 1927 – 11 June 2013) was an eminent Orthodox Jewish rabbi and posek (halakhic authority) in Jerusalem, Israel.
He was one of the primary students of Rabbi Shlomo Zalman Auerbach and the author of a two-volume Hebrew language treatise, Shemirat Shabbat Kehilchatah — translated into English as Shemirath Shabbath: A practical guide to the observance of Shabbath — a compendium of the laws of Shabbat which is viewed by many as an authoritative work regarding these laws.